diff options
Diffstat (limited to 'src/southbridge/intel/lynxpoint/lp_gpio.h')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/lp_gpio.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/southbridge/intel/lynxpoint/lp_gpio.h b/src/southbridge/intel/lynxpoint/lp_gpio.h new file mode 100644 index 0000000000..067b6e2060 --- /dev/null +++ b/src/southbridge/intel/lynxpoint/lp_gpio.h @@ -0,0 +1,110 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Google Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef INTEL_LYNXPOINT_LP_GPIO_H +#define INTEL_LYNXPOINT_LP_GPIO_H + +/* LynxPoint LP GPIOBASE Registers */ +#define GPIO_OWNER(set) (0x00 + ((set) * 4)) +#define GPIO_PIRQ_APIC_EN 0x10 +#define GPIO_BLINK 0x18 +#define GPIO_SER_BLINK 0x1c +#define GPIO_SER_BLINK_CS 0x20 +#define GPIO_SER_BLINK_DATA 0x24 +#define GPIO_ROUTE(set) (0x30 + ((set) * 4)) +#define GPIO_ALT_GPI_SMI_STS 0x50 +#define GPIO_ALT_GPI_SMI_EN 0x54 +#define GPIO_RESET(set) (0x60 + ((set) * 4)) +#define GPIO_GLOBAL_CONFIG 0x7c +#define GPIO_IRQ_IS(set) (0x80 + ((set) * 4)) +#define GPIO_IRQ_IE(set) (0x90 + ((set) * 4)) +#define GPIO_CONFIG0(gpio) (0x100 + ((gpio) * 8)) +#define GPIO_CONFIG1(gpio) (0x104 + ((gpio) * 8)) + +#define MAX_GPIO_NUMBER 94 /* zero based */ +#define GPIO_LIST_END 0xff + +/* conf0 */ + +#define GPIO_MODE_NATIVE (0 << 0) +#define GPIO_MODE_GPIO (1 << 0) + +#define GPIO_DIR_OUTPUT (0 << 2) +#define GPIO_DIR_INPUT (1 << 2) + +#define GPIO_NO_INVERT (0 << 3) +#define GPIO_INVERT (1 << 3) + +#define GPIO_IRQ_EDGE (0 << 4) +#define GPIO_IRQ_LEVEL (1 << 4) + +#define GPI_LEVEL (1 << 30) + +#define GPO_LEVEL_LOW (0 << 31) +#define GPO_LEVEL_HIGH (1 << 31) + +/* conf1 */ + +#define GPIO_PULL_NONE (0 << 0) +#define GPIO_PULL_DOWN (1 << 0) +#define GPIO_PULL_UP (2 << 0) + +#define GPIO_SENSE_ENABLE (0 << 2) +#define GPIO_SENSE_DISABLE (1 << 2) + +/* owner */ + +#define GPIO_OWNER_ACPI 0 +#define GPIO_OWNER_GPIO 1 + +/* route */ + +#define GPIO_ROUTE_SCI 0 +#define GPIO_ROUTE_SMI 1 + +/* irqen */ + +#define GPIO_IRQ_DISABLE 0 +#define GPIO_IRQ_ENABLE 1 + +/* blink */ + +#define GPO_NO_BLINK 0 +#define GPO_BLINK 1 + +/* reset */ + +#define GPIO_RESET_PWROK 0 +#define GPIO_RESET_RSMRST 1 + +struct pch_lp_gpio_map { + u8 gpio; + u32 conf0; + u32 conf1; + u8 owner; + u8 route; + u8 irqen; + u8 reset; + u8 blink; +} __attribute__ ((packed)); + +/* Configure GPIOs with mainboard provided settings */ +void setup_pch_lp_gpios(const struct pch_lp_gpio_map map[]); + +#endif |